<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>fragments</title>
</head>
<body>
<nav class="navbar navbar-expand navbar-dark bg-dark bg-gradient">
    <div class="container-fluid">
        <a class="navbar-brand" href="#">学生在线考试系统</a>
        <div class="collapse navbar-collapse">
            <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                <li class="nav-item nav-link">
                    管理员端
                </li>
                <li class="nav-item nav-link">
                    2018年 9 月 9 日
                </li>
                <li class="nav-item nav-link">
                    22：22
                </li>
            </ul>
            <div class="navbar-text">
                当前用户：王铭
            </div>
            <div class="navbar-text">
                <a class="nav-link">注销</a>
            </div>
        </div>
    </div>
</nav>
</body>
</html>